概述 Descriptions

喷雾干燥是液体工艺成形和干燥工业中泛应用的工艺。于从溶液、乳液、悬浮液和可泵性糊状液体原料中生成粉状、颗粒状固体产品。因此，当成品的颗粒大小分布、残留水份含量、堆积密度和颗粒形状必须符合精确的标准时，喷雾干燥是一道十分理想的工艺。

Spray drying is the most widely used process in liquid process forming and drying industry. It is most suitable for producing powdery and granular solid products from solutions, emulsions, suspensions and pumpable pasty liquid raw materials. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must conform to accurate standards.

原理 Principles

空气经过过滤和加热，进入干燥器顶部空气分配器，热空气呈螺旋状均匀地进入干燥室。料液经塔体顶部的高速离心雾化器，(旋转)喷雾成极细微的雾状液珠，与热空气并流接触，在极短的时间内可干燥为成品。成品连续地由于燥塔底部和旋风分离器中输出，废气由风机排空。

After filtration and heating, the air enters the air distributor at the top of the dryer, and the hot air enters the drying chamber spirally and evenly. The feed liquid passes through a high-speed centrifugal atomizer at the top of the tower body and is (rotationally) sprayed into extremely fine atomized liquid beads, which are in parallel flow contact with hot air and can be dried into a finished product in a very short time. The finished product is continuously output from the bottom of the drying tower and the cyclone separator, and the waste gas is evacuated by the fan.

特点 Features

干燥速度快，料液经雾化后，表面积大大增加,在热风气流中，瞬间就可蒸发95%-98%的水份，完成干燥时间仅需数秒钟，特别适用于热敏性物料的干燥。

产品具有良好的均匀度、流动性和溶解性、产品纯度高、质量好。

生产过程简化，操作控制方便。对于湿含量40-60%(特殊物料可达90%)的液体能一次千燥成粉粒产品，干燥后不需粉碎和筛选，减少生产工序，提高产品纯度。对产品粒径、松密度、水份，在一定

范围内可通过改变操作条件进行调整，控制和管理都很方便。

The drying speed is fast. The surface area of the feed liquid is greatly increased after atomization. In hot air flow, 95%-98% of water can beevaporated in an instant. The drying time is only a few seconds. It is especially suitable for drying heat sensitive materials.

The product has good uniformity, fluidity and solubility, high purity and good quality.

The production process is simplified and the operation and control are convenient. For liquids with a moisture content of 40-60% (special materials can reach 90%), they can be dried into powder products at one time without crushing and screening after drying, thus reducing production procedures and improving product purity. The particle size, bulk density and water content of the product can be adjusted by changing the operating conditions within a certain range, and the control and management are very convenient. 

应用 Applications

化学工业

氟化钠(钾)、碱性染料颜料、染料中间体、复合肥、甲醛硅酸、催化剂、硫酸剂、氨基酸、白炭黑等。

塑料树脂

AB, ABS乳液、尿醛树脂、酚醛树脂、密胶(脲)甲醛树脂、聚乙烯、聚氯乙烯

食品工业

富脂奶粉、胳朊、可可奶粉、代乳粉、猪血粉、蛋清(黄)等。食物及植物:燕麦、鸡汁、咖啡、速溶茶、调味香料肉、蛋白质、大豆、花生蛋白质、水解物等。

糖类:玉米浆、玉米淀粉、葡萄糖、果胶、麦芽糖、山梨酸钾等。

陶瓷、氧化铝、瓷砖材料、氧化镁、等。

Chemical Industry

Sodium fluoride (potassium), basic dye pigment, dye intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid agent, amino acid, white carbon black, etc.

Plastic resin

AB, ABS emulsion, urea formaldehyde resin, phenolic resin, dense glue (urea) formaldehyde resin, polyethylene, polyvinyI chloride, etc.

Food Industry

Fat-rich milk powder, lecithin, cocoa milk powder, milk replacer, pig blood powder, egg white (yellow), etc.Food and Plants: Oats, Chicken Juice, Coffee, Instant Tea, Spicy Meat, Protein, Soybeans, Peanut Protein, Hydrolysates, etc.Sugar: corn steep liquor, corn starch, glucose, pectin, maltose, potassium sorbate, etc.

Ceramics, alumina, ceramic tile materials, magnesium oxide, talcum powder, etc.

技术参数 Technicalparameters